GB 5009.85-2016 Translated English of Chinese Standard. GB5009.85-2016: National food safety standard - Determination of vitamin B2 in foodshttps://www.chinesestandard.net, 26 ene 2018 - 16 páginas This standard specifies the determination of vitamin B2 in foods. The first method of this standard is high performance liquid chromatography and the second method is fluorescence spectrophotometry, which apply to the determination of vitamin B2 in various type of foods. |
Índice
| 3 | |
Scope | 4 |
Instrument and equipment | 6 |
Analysis results expression | 7 |
Precision | 8 |
Reagents and materials | 9 |
Instrument and equipment | 10 |
Analytical procedures | 11 |
Analysis results expression | 13 |
Appendix A Concentration calibration method of vitamin B2 standard solution 14 Appendix B Liquid chromatogram of vitamin B 2 | 14 |
Términos y frases comunes
4°C refrigerator acetate solution 0.05 acid solution 1+1 ADD 2 mL ADD 90 mL ADD water arithmetic mean Autoclave B2 in foods B2 standard intermediate B2 standard solution B2 standard stock chromatograph conical flask Determination of vitamin fluorescence intensity g accurate g of sodium Glacial acetic acid high performance liquid Hydrochloric acid solution Hydrogen peroxide MIX it uniformly Mixed enzyme solution mL of hydrochloric mL of Vitamin mL of water mol/L hydrochloric acid papain performance liquid chromatography PH meter phosphorus pentoxide PIPETTE 9 mL potassium permanganate Reagents refrigerator with shelf riboflavin sample solution sample tube sodium acetate solution sodium acetate trihydrate sodium dithionite Sodium hydroxide solution 0.1 mol/L spectrophotometry standard curve standard intermediate solution standard stock solution standard tube taka-amylase thermostatic water bath U/mg value of sample value of standard vitamin B2 content Vitamin B2 standard volumetric flask water to dilute water to dissolve wavelength of 444 WEIGH 4 g